Titre :

Design of a metallic glass dispersion in pure copper by friction stir processing

Auteur(s) :

Avettand-Fènoël, Marie-NoËlle [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Netto, N. [Auteur]
Simar, A. [Auteur]
Marinova, Maya [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Institut Michel Eugène Chevreul - FR 2638 [IMEC]
Taillard, R. [Auteur]

Titre de la revue :

Journal of Alloys and Compounds

Nom court de la revue :

Journal of Alloys and Compounds

Numéro :

907

Pagination :

164522

Éditeur :

Elsevier BV

Date de publication :

2022-06

ISSN :

0925-8388

Mot(s)-clé(s) en anglais :

Copper
Metallic glass reinforcement
Friction stir processing
Phase transformations
Microstructure
Mechanical properties

Discipline(s) HAL :

Chimie/Matériaux
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]

Résumé en anglais : [en]

Multipass friction stir processing of Fe based metallic glass ribbons interspersed between Cu plates was performed. From the first pass, the process entailed on the one hand the decrease of the Cu mean grain size in the ...
Lire la suite >Multipass friction stir processing of Fe based metallic glass ribbons interspersed between Cu plates was performed. From the first pass, the process entailed on the one hand the decrease of the Cu mean grain size in the nugget by a factor of about 5 and on the other hand the fracture, the refinement and the partial crystallization of the amorphous reinforcement. Cu diffusion also led to marked Cu enrichments in the Fe based metallic glass whose mean Cu content reached 2.7 at%. Beside the metallic glass based reinforcements, some nanometric polycrystalline copper oxides were formed and dispersed within the nugget. The nugget also experienced dynamic recovery and dynamic recrystallization which was in particular favored by the accumulation of dislocations around the reinforcements. Finally, the greater number of passes, the harder the nugget becomes.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Équipe(s) de recherche :

Métallurgie Physique et Génie des Matériaux

Date de dépôt :

2022-03-16T09:37:26Z
2022-03-21T07:55:07Z